An up-to-date number is essential for your Facebook account for several reasons:
- Account recovery: If you ever forget your Facebook password or need to recover your account for any reason, Facebook may send a verification code to your phone number to confirm your identity and grant you access to your account.
- Security: Adding your phone number to your Facebook account can help secure your account and protect it from unauthorized access. For example, Facebook can send you a text message to alert you if someone tries to log in to your account from an unrecognized device or location.
- Two-factor authentication: Enabling two-factor authentication (2FA) on your Facebook account is an additional layer of security that requires you to enter a code sent to your phone number, in addition to your password, when logging in from an unrecognized device. This helps prevent unauthorized access to your account.
- Personalization: Your phone number is also used by Facebook to personalize your experience on the platform. For example, Facebook can use your phone number to suggest friends you may know or to show you ads that are relevant to your location.
Overall, adding an up-to-date phone number to your Facebook account is an important step in securing your account, recovering your account if needed, and personalizing your experience on the platform.
For more information, read How to add or remove a mobile number from your Facebook account.